EP1850058A1 - Speichertank - Google Patents

Speichertank Download PDF

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Publication number
EP1850058A1
EP1850058A1 EP06113077A EP06113077A EP1850058A1 EP 1850058 A1 EP1850058 A1 EP 1850058A1 EP 06113077 A EP06113077 A EP 06113077A EP 06113077 A EP06113077 A EP 06113077A EP 1850058 A1 EP1850058 A1 EP 1850058A1
Authority
EP
European Patent Office
Prior art keywords
cylindrical body
end cap
open end
storage tank
inner liner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06113077A
Other languages
English (en)
French (fr)
Inventor
Saurin Mehta
David Hill
James Edward Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plastic Omnium Advanced Innovation and Research SA
Original Assignee
Inergy Automotive Systems Research SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inergy Automotive Systems Research SA filed Critical Inergy Automotive Systems Research SA
Priority to EP06113077A priority Critical patent/EP1850058A1/de
Priority to CN200780011501.8A priority patent/CN101410666B/zh
Priority to PCT/EP2007/052840 priority patent/WO2007110399A2/en
Priority to KR1020087026565A priority patent/KR20090006137A/ko
Priority to EP07727314.2A priority patent/EP2002170B1/de
Priority to US12/293,313 priority patent/US7918956B2/en
Priority to JP2009502052A priority patent/JP2009531625A/ja
Publication of EP1850058A1 publication Critical patent/EP1850058A1/de
Priority to JP2013098462A priority patent/JP2013177977A/ja
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0621—Single wall with three layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305—Bosses, e.g. boss collars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/012—Reducing weight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0763—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the present invention relates to a method for manufacturing a polymeric inner liner for a storage tank, in particular for a hydrogen storage tank.
  • Compressed gas is becoming an increasingly popular choice for transportation fuels. As more and more vehicles use compressed gas as fuel, more emphasis needs to be put on the emissions of the fuel systems of such vehicles. Currently, there is a requirement from compressed gas fuel systems that addresses the safety risks of gas permeation from such a system. There is, however, currently no standard that addresses the environmental concerns of compressed gas permeation. When such a standard is introduced, it is likely to be much more restrictive than the current emissions standard.
  • Type II tanks concern all steel tanks, which are generally rather heavy and therefore not favored in relation with vehicles.
  • Type III tanks are composite tanks with aluminum liners. These tanks show excellent emission results but are rather expensive.
  • Type IV tanks are composite tanks with polymer liners. Type IV tanks also have very good emission results but, compared to the type III tanks, these tanks have the further advantage of being lighter and less expensive. Therefore, type IV tanks are the most likely candidates for compressed hydrogen storage tanks.
  • US 5,429,845 discloses a storage tank comprising a non-metallic inner liner made of plastic or other elastomers and manufactured in one piece by compression molding, blow molding, injection molding or any other generally known technique.
  • the inner liner has a generally cylindrical centre portion and a generally dome-shaped end portion with connections for a metallic communication boss.
  • Another, similar storage tank is disclosed in US 5,476,189 , wherein the inner liner has a generally hemispheroidal end section with connections for a metallic communication boss.
  • the present invention provides a method for manufacturing a polymeric inner liner for a storage tank, in particular for a hydrogen storage tank, the method comprising the steps of:
  • an inner liner with good emission results can be more cost-effectively produced. It is not necessary to use a complex injection molding process to produce the inner liner. The use of a metallic liner is also not necessary. Also, the present method provides an easy and effective solution for manufacturing inner liners of different lengths. Indeed, a dome-shaped end cap can be connected to a cylindrical body of any length to form the completed inner liner. Furthermore, the inner liner according to the present method provides excellent permeation qualities and is suitable in connection with storage tanks for compressed hydrogen.
  • the cylindrical body and the end cap are preferably both provided with at least one structural layer and at least one barrier layer.
  • the barrier layer can also be sandwiched between two structural layers.
  • the barrier layer further increases the permeation performances of the inner liner.
  • a storage tank with an inner liner as manufactured using the present method can be used to reduce the emissions from the storage tanks into the atmosphere. It also allows the storage of gasses of smaller molecule size, as e.g. hydrogen.
  • An adhesive layer can be provided between the structural layer and the barrier layer for bonding the two layers.
  • the adhesive layer can be made of any material that is adhesive to both the structural layer and the barrier layer, such as e.g. adhesive modified LDPE for a PE/EVOH configuration as described below.
  • the structural layer comprises polyethylene (PE) or polyamide (PA).
  • the barrier layer preferably comprises ethylene vinyl alcohol copolymer (EVOH) and can have a thickness of less than 500 ⁇ m, possibly even less than 300 ⁇ m.
  • EVOH ethylene vinyl alcohol copolymer
  • a peripheral end portion of the end cap is advantageously provided with a peripheral connection tab for welding to a peripheral connection tab of the open end of the cylindrical body.
  • a connection allows limiting the risk of permeability at the connection between the end cap and the cylindrical body.
  • the dimensions of the welding tab are preferably greater than the wall thickness of the outer shell, as to facilitate the fold over of the material, but sufficiently small enough to ensure that the mechanical properties of the weld are not significantly different than those of the rest of the liner, hereby mitigating the risk of failure due to a stress riser. Welding tabs with a length about three times the wall thickness are a good compromise in that regard.
  • the cylindrical body can have a second open end opposite the first open end and the method can comprise the further steps of:
  • the invention further concerns an inner liner manufactured according to the above method and a storage tank comprising such an inner liner.
  • This above described inner layer is indeed combined with an outer shell to provide a storage tank.
  • the nature of the outer shell is any structure suitable for containing at least 10 bar of pressure. This can come in the form of a metallic structure or more preferably, a carbon fiber filament wound around the outside of the liner, and then wound with a layer of a more impact resistant material.
  • the liner and the outer shell are coaxially adjacent to each other and, besides the mechanical constraint of the outer shell on the inner liner, the two are not connected and expand and contract at different rates.
  • a top section of a polymeric inner liner is indicated generally at 10 and comprises a cylindrical body 12, a first end of which is shown in Fig. 1, and a dome-shaped end cap 14.
  • the cylindrical body 12 comprises a first open end 16 and comprises a first peripheral connection tab 18.
  • the end cap 14 has a base and an apex, wherein the base has a second open end 19 and the apex has a communication opening 20 for forming a communication between the inner chamber of the storage tank and the exterior of the storage tank.
  • the end cap 14 comprises, at its base, a second peripheral connection tab 22.
  • peripheral connection tabs 18, 22 are arranged in such a way that, when the end cap 14 is placed on the first end of the cylindrical body 12, the peripheral connection tabs 18, 22 are in alignment and can be connected by welding. Once welded together, the cylindrical body 12 and the end cap 14 form an inner chamber 24 wherein compressed gas can be stored.
  • the inner liner 10 shown in Fig.2 comprises a barrier layer 26 sandwiched between a first and a second structural layer 28, 28' with adhesive layers 30, 30' arranged between the barrier layer 26 and the structural layers 28, 28'.
  • the inner liner 10 shown in Fig.3 comprises a barrier layer 26 connected to a structural layer 28 via an adhesive layer 30.
  • the inner liner 10 shown in Fig.4 comprises a barrier layer 26 directly connected to a structural layer 28.
  • the structural layer 28, 28' can be made of PE and can have a thickness in the range between 1 and 8 mm. Another material that could e.g. be used for the structural layer is PA.
  • the barrier layer 26 can be made of EVOH and can have a thickness in the range between 50 and 500 ⁇ m.
  • the adhesive layer 30, 30' can have a thickness in the range between 50 and 500 ⁇ m.
  • the adhesive layer 30, 30' can be made of any material that is adhesive to both the structural layer and the barrier layer, such as e.g. adhesive modified LDPE for the above PE/EVOH configuration.
  • the overall thickness of the inner liner 10 is in the range between 2 and 17 mm.
  • the communication opening 20 in the apex of the end cap 14 cooperates with a metallic communication boss, schematically indicated and generally referred to by reference number 32, to create a communication passage between the interior of the storage tank and the exterior thereof.
  • a valve (not shown) is generally installed in this communication passage. Through the communication passage, compressed gas can be fed into the storage tank and released therefrom.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP06113077A 2006-03-29 2006-04-25 Speichertank Withdrawn EP1850058A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP06113077A EP1850058A1 (de) 2006-04-25 2006-04-25 Speichertank
CN200780011501.8A CN101410666B (zh) 2006-03-29 2007-03-26 用于制造储罐内衬的方法
PCT/EP2007/052840 WO2007110399A2 (en) 2006-03-29 2007-03-26 Method for manufacturing an inner liner for a storage tank
KR1020087026565A KR20090006137A (ko) 2006-03-29 2007-03-26 저장 탱크용 내부 라이너의 제조 방법
EP07727314.2A EP2002170B1 (de) 2006-03-29 2007-03-26 Fertigungsverfahren für einen liner eines vorratstanks
US12/293,313 US7918956B2 (en) 2006-03-29 2007-03-26 Method for manufacturing an inner liner for a storage tank
JP2009502052A JP2009531625A (ja) 2006-03-29 2007-03-26 貯蔵タンク用インナーライナの製造方法
JP2013098462A JP2013177977A (ja) 2006-03-29 2013-05-08 貯蔵タンク用インナーライナの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06113077A EP1850058A1 (de) 2006-04-25 2006-04-25 Speichertank

Publications (1)

Publication Number Publication Date
EP1850058A1 true EP1850058A1 (de) 2007-10-31

Family

ID=36939114

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06113077A Withdrawn EP1850058A1 (de) 2006-03-29 2006-04-25 Speichertank
EP07727314.2A Active EP2002170B1 (de) 2006-03-29 2007-03-26 Fertigungsverfahren für einen liner eines vorratstanks

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07727314.2A Active EP2002170B1 (de) 2006-03-29 2007-03-26 Fertigungsverfahren für einen liner eines vorratstanks

Country Status (6)

Country Link
US (1) US7918956B2 (de)
EP (2) EP1850058A1 (de)
JP (2) JP2009531625A (de)
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WO2009156442A2 (en) * 2008-06-25 2009-12-30 Inergy Automotive Systems Research (Société Anonyme) Method for manufacturing a storage tank
US8940121B2 (en) 2008-06-25 2015-01-27 Inergy Automotive Systems Research (Societe Anonyme) Method for manufacturing a storage tank
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DE102011011840B4 (de) * 2010-02-26 2015-04-02 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Verfahren zur Herstellung eines Behälters
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US20130306651A1 (en) * 2011-02-11 2013-11-21 Martin Markert Pressure Vessel for Helium
WO2012107581A1 (de) * 2011-02-11 2012-08-16 Martin Markert Druckbehälter für helium
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CN106794618A (zh) * 2014-08-06 2017-05-31 考特克斯·特克斯罗恩有限公司及两合公司 压力容器以及用于生产包括至少一个连接元件的压力容器坯件的设备和工艺
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WO2016202585A1 (de) * 2015-06-16 2016-12-22 Saf-Holland Gmbh Zweiteilige behälteranordnung für druckluft
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US20090263315A1 (en) 2009-10-22
WO2007110399A3 (en) 2007-11-08
JP2009531625A (ja) 2009-09-03
US7918956B2 (en) 2011-04-05
WO2007110399A2 (en) 2007-10-04
EP2002170A2 (de) 2008-12-17
CN101410666B (zh) 2014-01-29
JP2013177977A (ja) 2013-09-09
EP2002170B1 (de) 2019-05-15
CN101410666A (zh) 2009-04-15

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